Nut lock



March -1O, 1931. M. ILAIVEQUEI 1,796,207

NUT LOCK Filed March 1. 1930 I N VEN TOR.

171089 Lamsjae ATTORNEY.

Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE ll-IOSE LAVEQUE, OFMUNI SING, MICHIGAN, ASSIGNOR OF ONE-FOURTH TO E. S.

WALTERS AN D ONE-FOURTH TO T. W. SCHOLTES, BOTH F MUNISIN G, MICHIGAN INUT Loox Application filed March 1, 1930. Serial No. 432,485.

This invention relates to nut locks, and has for its object to provide,in a manner as hereinafter set forth, a lock of such class forpreventing the turning of a nut. in a direction from off a bolt when thenutis in securm position whereby the latter is held in e such position,and further with the look so venient release of the nut from'oif thebolt constructed and arranged to enable the conwhen occas ion requires.7 A further object 'of the invention is to provide, in'a manner ashereinafter set forth, a nut lock which is simple in its constructionand arrangement, strong, durable,'compact, readilyassen1bled,-thoroughly efficient in its use, conveniently set in lookingposition and 1 released when desired, and comparatively inexpensive tomanufacture.

With the foregoing and other objects in view the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically de-- scribed, and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modifications"can be resorted to which fall within the scope of the claims hereuntoappended.

, "[In the drawings wherein like reference .i

characters denote corresponding parts throughout the several views: j r

; Figure 1 is a side elevation of a nut lock ;in accordance withthisinvention and further r illustrating the adaptation thereof withrespect to a bolt andthe object through which the bolt extends. i i

Figure 2 is a verticalsectional view ofthe nut lock and furtherillustrating the adaptation thereof withrespectto a bolt and alsoshowing in dottedlines the locking washer in non-locking position. 1

' 7 Referring to the drawing in detail, 1 de- Figure 3 is a section online 33, Figure 2.

I Figure 1 is a perspective view of the nut.

Figure 5 is a perspectiveview of the looking washer.

.notes the threadedportion of the shank 2 I of a bolt. The head of thebolt is indicated at 3. The shank or stem of the bolt is illustrated asextendingthrough the object with shank or stem 2 of the bolt.

'asubstantial distance from one side of the object 4. The head 3 abutsagainst the other side of the object 1. The nut which threadedly engageswith the threaded portion of the shank 2 of the bolt is indicatedgenerally at 5 and is of polygonal contour. The outer face of the nut 5is indicated at 6 and projecting outwardly from the latter is a lug 7 ofthe desired width and length. The inner face of the lug 7, such faceindicated at 8, is disposed upon an are similar to the are 9 of theinner face of nut 5. The inner face 8 of lug 7 is threaded as at 10 toform a continuation of threads 11 on the inner face 8 of nut 5-. Theouter face 12 of lug 7 is beveled and the bevel extends downwardly fromthe outer face 6 of nut 5 to the outer end 13 of the lug 7. Atransversely extending opening 14 is formed in the lug 7 adjacent theouter end thereof. The threads 10 and 11 engage with the threadedportion1 of the shank or stem 2 of the bolt when posi- 7 tioning and removingon and from the bolt. The nut lock further includes a locking washer 15having a groove 16 extending from its inner edge of wall 17. The groove16 is provided for the passage of the lug 7. The so groove 16 includes apair of side walls 18, 19 and an-inner end wall 20 which is beveled asindicatedat 21, Figure 2. The beveled face 12 of the-lug 7 coacts withthe beveled wall '20 of the groove 16 to set up a wedging action for 5the purpose of drawing the locking washer 15 tightly-against thethreaded portion 10f the The inner face of the wall 17 of the lockingwasher 15 is-provided with transversely extending teeth 22 so which aredisposed lengthwise with respect to the bolt and extend at right angleswith re spect to the threads 10, 11 and the threadsof portion 1 ofthebolt.

The coaction of the beveled face 12 and beveled wall 20 will, as beforestated, bind the locking washer 15 against the threaded portion l-of thestem or shank 2 of the bolt, and cause the teeth 22 to bite into thethreads of the bolt to prevent the shifting of the washer 1 0 7 uresl2and 3iwillsecurely lock the nut 5 topre- .1 ..vent-its turningQrelativeto'the bolt an'dswilllalso act to prevent the;bolt turning. relative to;v .;1;.theint1t. Thesmanner in which the elements of the lock coaot willsecurely maintainthe nutftagainst one faceiof the'article orobj est 4:.

' VVhatIclaimis: p

1 1. In anut lock,.a-bolt engaging nut formed 1on=oneface with anoutwardly directed lug,-

. ployed a'ndwvhichis in thei form ofacotter pinand' is extended through:theopenmg l l and bears against the outer face of' washer lf),

' heopen nsrror ded y. Wa 15 5 m greaterarsat an herlia e t h adportion'l'of the shank or stemof the-bolt.

See Figure 3. The binding engagement of,

the washerl5 with respect to the bolt is shown in Figure 8.

The posit1on of the elements shown in FigiThe nut5 canbe convenientlyreleased, and

.-.in this-connection itwill be stated that the. cotter-pin23 .will beremoved from the lug 5 andthewasher shifted off the latter. Thenut5-canthenrbe rotatediotf the bolt or if it be desired, after the washer15 has been removed, #the nut 5 may be screwed toward object tif it benecessary. I v

' having plural fac es one of the faces of said lug being'arcuate andthreaded and adapted- ,:;5;t'o eng'age with the threads of the bolt,an-fi other ofthe faces of said lug beingbeveled, A. aloeking washer forabutting said face of the nut andhaving a groove forthe passage of saidlug, one-of'the walls of said groove-being 0 beveled and eoacting withsaidbeveled face r for drawing the washer against the threads of thebolt, said washer having teeth on its inner -f facei to engage thethreads of the bolt, and means carried-by'the-lug'for maintaining theto-said face of the nut.

145 washerin abutting engagement with respect 2.- Ina r nitlockga boltengagingnut-forrned -;-;;on one facewith an-outwardly directed lughavingpluralface -one of-the faces of said I F1 lug} being arcuate andthreaded and adapted ltolengage-with-thethreadsof the-bolt, another 0fthe facesF of saidf lug being. beveled, a

I? {withteeth to engage the threads of the bolt when-the locking washeris drawn-in a direction toward the bola-and means carried by lookingwasher for abutting said face of the nut andhaving a groove for thepassageofi said lug, one 'ofthdwallsof s'ai-dgroove being o-beveled andcoaoting with said beveled face 'for drawing the washer against'thethreads of the, bolt, said washer. having teeth on its inner 7 face toengage the threads-of the'bolt, and meansoarried bythe 'lugjformaintaining the washer in abutting engagement with respect to said face"of vthe fnut, the teeth onsaidfl washerextending at right angles: withrespect to-the threadsof, the bolt 5 3. A nut loek'coinprising aboltengagingthreads of the bolt, a toothed locking washer for positioningagainst the nut and having means coaoting with said lug for drawing-.t-he washenagainst thebolt whereby the teeth i ofthe.former..willengage in. the threads of the latter, and means carried bythe lug for detachably securing' said 'washer in bolt en i g po t 4. Ina -nut look, *a bolt engaging nut, a

. toothed locking washer, said nut and washer having coacting means fordrawing the vwasher,-toward thebolt whereby the teeth of the former willengagethe threads of the latter, said coaotingmeansonthe nut havinganaperture, and removable means extending through saidaperturelfordetachably secur- ;.ing the washer in bolt engagingv position.

5. .In fiiIllltilOCk; in combination a nut hav; ing a beveled threadedlug on its outer face .forxthreaded engagement witha bolt, a look-.ingvwasher having a groove for, the passage ofsaidlugandsteeth on avpartsofits inner face opposing said groove, saidwasher have. ing meanscoacting with said lug. forshifting the washer ina direction :tohave itsteeth en gage inxthe threads of the-bolt, and: means carried by the lug.for detachablylseouring -=-the washer in bolt engaging position. 1:.

.6; Ina nut lock, in combination a nut-having a beveled, threaded lug onits outer face forthreaded engagementwith a bolt, a looking washerhavinga groovefor the passage of saidlug and teeth on apart of its inner.

.face opposing said groove,-said washer hav- -1ng means coact1ng w1thsald lug for sh ft ng thewasher in akdirection to haveits teeth engagein the threads of-thebolt, and-means carried by the' lug for detachablysecuring the washer in bolt;engaging position, the teeth of the-washerextending atrightangles to the threads of the lug 7 In anut look a boltengaging nut having a lug -extended' from one face thereof, said lugformed with a; beveled face, alocking washer-having agroove opening atthe inner edge thereof fo'r'thepassage of said lug, one,

wall-of saidgroove being beveled andoooact- "ing with said beveled {facefor drawing th'e washer toward the threadsio-f the bolt, and

said washer havingitsinner edge provided the lug for detachably securingsaidwasher in lug-andbolt engaging position.

8'. Ina nutloclrflabolt engaging nut having a lug extended from one facethereof, said lug formed with a beveled face, a locking washer havinga;groove opening at the inner edge thereof-for,thepassage ofjs'aidlug,.one wall hereto.

MOSE LAVEQUE.

